Police harrassment

I was pulled over and treated like heck by the Tennessee police they said i was going 30mph. Which was a lie i was going 58 because i was keeping an eye out for a rest area sign so i could check my tires because i was feeling a vibration in my vehicle. Anyway they treated me bad i let them search my vehicle,they eventually let me go and i was missing my 100 dollars from my glove box.
The next month i traveled to brownsville texas and i was looking for the border to mexico.it was about 2am and i saw some lights on the left and i crossed the road and as i stopped a patrol car that was following me with his lights off! Almost ran into me! I dont know how long he followed me like that. But he yelled me out of the car and his backup showed moments later. He told me i had to take a field sobriety test.and when i refused he threatened me with a reckless driving ticket, i told him to give it to me then so i can go.he didnt. Instead he asked if he can search my vehicle and i refused on the basis of what happened to me in Tennessee.and so he called canine. After all that stress they caused me.the cop said ''now, we aren't like the police in Tennessee..are we?'' then he gave me directions to the border and i was on my way.the bad thing is Im traveling back to PA this month, how many times will i get harrassed. 2xs ís probably normal.