Buying a large amount of bitcoin in person will be difficult
But you might wanna try:
Try looking at
https://localbitcoins.com - Just pick "In person" --> "Cash" category
or here in the forum at
Currency Exchange - try asking if someone's near at your place
This will of course depends on how "bulk" are you going to buy since there's always a limit on how much a seller can offer, you can solve this by simply transacting with 1 or 3+ sellers (depends on what you need).