An easy cache and dash at junction 5 of the M20 near Aylesford. This is a small tupperware pot containing log and a pencil with room for geocoins and small trackables.
The cache is easily found and there is a little entrance road right next to it which you will be able to park in to do the cache. Be careful around the rush hours as commercial traffic around here might think it a bit odd people poking around but apart from that you shouldn't have any trouble.
Only other issue will be it someone has beaten you to the parking spot in which case you'll have to come back or wait somewhere else.
There are lots of other Motorway Mayhems around which are there for the commuter to stop and have a rest/break, unfortunately no service station here but a Sainsburys near by or just feel free to rest here as you shouldn't have a problem.
---Update---
As I am moving job and I will have a longer trip to maintain I have upgraded the size of the container and placed an additional huge log it in which should last forever.
Cache not moved in location but due to large size please could you make sure it is replaced and covered as well as possible and out of site.