Hello Scotty, I took my 08 Nissan Altima for oil change today and after picking it up and driving for about 10 min on a hwy the engine started to shake and car wouldn't accelerate. The check engine light came on shortly after. Once I got home, I plugged in a reader and it said "p0302 - cylinder misfire". Checked the oil dipstick and it's definitely overfilled. Any suggestions on what to do besides draining excessive oil? anything else I should look for?

take it back, they probably knocked spark plug wires loose or got oil on them