1999 Ford Explorer brakes, ABS light on, slight shudder

HI. I just had front/rear brakes, upper body ball joint, front/rear rotors and calibers put on my ford. Everything seemed to be ok. Till now. The ABS light was on before I took it to the mechanic and had all that work done but it's still on, is that normal? Also the check engine light just turned on today and I drove it around but it's not making any weird noise or overheating. And one more thing, everybody can get out of SUV but me, the driver side locks me in, I have to lean over and hit the unlock button on passenger side 3 X's then it opens, it's annoying but I can deal w/ it but would like to know why it's doing that. Any suggestions I would GREATLY appreciate it! Thanks, Chrissy