A/C DRN line locations. Dearlers says done. IDK about that. Want to check it on 2007 Lexus IS250

After driving home about 70 miles it was wet. I don't know how dry it was when I left. I assumed it was dry, but you know what happens when you assume something. I just want to check it to make sure that it's not something else. e.g. Heater core ? Thanks in advance, Pat

Asked by for the 2007 Lexus IS250